Abstract:

The invention relates to a fragrancing composition comprising, in a
cosmetically acceptable medium: a) at least 1% by weight relative to the
total weight of the composition of at least one fragrancing substance; b)
at least one volatile alcohol and/or one volatile silicone oil; c) at
least one crosslinked or uncrosslinked amphiphilic copolymer of partially
or completely neutralized 2-acrylamidomethylpropanesulphonic acid (AMPS)
monomer (A) and at least one hydrophobic monomer (B) d) optionally at
least a cellulose alkyl ether and/or an alkylcellulose alkyl ether, the
alkyl radicals being linear or branched saturated C1-C4 alkyl
radicals; and e) optionally water. The invention also relates to a method
of fragrancing human keratinous substances and especially the skin, lips
and integuments, comprising the application to the keratinous substances
of the composition defined previously.

Claims:

1. Fragrancing composition comprising, in a cosmetically acceptable
medium: a) at least 1% by weight relative to the total weight of the
composition of at least one fragrancing substance; b) at least one
volatile alcohol and/or one volatile silicone oil; c) at least (i) one
crosslinked or uncrosslinked amphiphilic copolymer of partially or
completely neutralized 2-acrylamidomethylpropanesulphonic acid (AMPS)
monomer (A) and at least one hydrophobic monomer (B) d) optionally at
least a cellulose alkyl ether and/or an alkylcellulose alkyl ether, the
alkyl radicals being linear or branched saturated C1-C4 alkyl
radicals; and e) optionally water.

2. Composition according to claim 1, where the amount of fragrancing
substance varies from 1 to 30% by weight relative to the total weight of
the composition.

3. Composition according to claim 1, where the amphiphilic AMPS copolymer
is present in amounts of active material ranging from 0.01 to 5% by
weight relative to the total weight of the composition.

4. Composition according to claim 1, characterized in that the amphiphilic
AMPS copolymer is composed of:(A) 1 to 20 mol % of units of formula (I)
below: ##STR00003## (B) 80 to 99 mol % of
2-acrylamido-2-methylpropanesulphonic acid units of formula (II) below:
##STR00004## in which X.sup.+ is a proton, an alkali metal cation, an
alkaline-earth metal cation or the ammonium ion.

5. Composition according to claim 4, where the amphiphilic AMPS copolymer
is obtained from AMPS units of formula (II) and units of formula (I)
where p=0; R1 is the methyl (CH3) radical; n is an integer
ranging from 7 to 25 and R2 is a C10-C18 alkyl radical.

6. Composition according to claim 4, where the amphiphilic copolymer is an
uncrosslinked copolymer of a monomer of formula (II) where X.sup.+
denotes sodium or ammonium and of a C12-C14 or
C12-C15 alcohol methacrylate comprising 7 or 23 oxyethylenated
groups of formula (I).

7. Composition according to claim 1, where the volatile alcohol is chosen
from C1-C5 lower monoalcohols.

8. Composition according to claim 7, where the volatile alcohol is
ethanol.

9. Composition according to claim 1, where the cellulose alkyl ether
and/or alkylcelullose alkyl ether are present in concentrations ranging
from 0.1% to 2.5% relative to the total weight of the composition.

10. Composition according to claim 1, where the cellulose alkyl ether is
chosen from cellulose methyl ether or cellulose ethyl ether.

11. Composition according to claim 1 where the alkylcellulose alkyl ether
is ethylcellulose methyl ether.

12. Composition according to claim 1, comprising a mixture composed of at
least a) one amphiphilic AMPS copolymer and of b) at least one cellulose
alkyl ether and/or an alkylcellulose alkyl ether, the alkyl radicals
being linear or branched saturated C1-C4 alkyl radicals.

13. Composition according to claim 12, where said mixture is present in
concentrations ranging from 0.01 to 2.5% relative to the total weight of
the composition.

14. A fragrancing composition as defined in claim 1 wherein at least an
amphiphilic AMPS copolymer and/or at least one cellulose alkyl ether and
optionally at least an alkylcellulose alkyl ether, the alkyl radicals
being linear or branched saturated C1-C4 alkyl radicals
increase the staying power of the fragrance.

15. Method of fragrancing human keratinous substances and especially the
skin, lips and integuments, comprising the application to the keratinous
substances of the composition as defined in claim 1.

16. Composition according to claim 1, where the amount of fragrancing
substance varies from 2 to 25% by weight relative to the total weight of
the composition.

17. Composition according to claim 1, where the amphiphilic AMPS copolymer
is present in amounts of active material ranging from 0.1 to 5% by weight
relative to the total weight of the composition.

18. Composition according to claim 1, where the amphiphilic AMPS copolymer
is present in amounts of active material ranging from 0.3 to 2% by weight
relative to the total weight of the composition.

19. Composition according to claim 2, where the amphiphilic AMPS copolymer
is present in amounts of active material ranging from 0.01 to 5% by
weight relative to the total weight of the composition.

20. Composition according to claim 2, where the amphiphilic AMPS copolymer
is present in amounts of active material ranging from 0.1 to 5% by weight
relative to the total weight of the composition.

Description:

[0001]The invention relates to a fragrancing composition comprising, in a
cosmetically acceptable medium:

a) at least 1% by weight relative to the total weight of the composition
of at least one fragrancing substance;b) at least one crosslinked or
uncrosslinked amphiphilic copolymer of partially or completely
neutralized 2-acrylamidomethylpropanesulphonic acid monomer (A) and at
least one hydrophobic monomer (B)d) optionally at least a cellulose alkyl
ether and/or an alkylcellulose alkyl ether, the alkyl radicals being
linear or branched saturated C1-C4 alkyl radicals; ande)
optionally water.

[0002]It is known that a fragrance is the combination of various odorous
substances which evaporate at different times. Each fragrance exhibits
what is termed a "top note" which is the odour that diffuses first when
the fragrance is applied or on opening the receptacle containing it, a
"heart or middle note" which corresponds to the complete fragrance
(emitted for several hours after the "top note") and a "base note" which
is the most persistent odour (emitted for several hours after the "heart
or middle note"). The persistence of the base note corresponds to the
staying power of the fragrance.

[0003]Humans have always wanted to fragrance themselves and the objects
surrounding them or the places around them, both in order to mask strong
and/or unpleasant odours and to provide a pleasant odour.

[0004]Among the important quality criteria that are desired in perfuming
products, are, on the one hand, the staying power of the fragrance,
namely the persistence of the base note on the skin and, on the other
hand, the transparency of the formulation and also its fluid nature for
aesthetic reasons and reasons of ease of application.

[0005]The improvement of the staying power of fragrances has been the
subject of many studies. It has been proposed in various patents and
patent applications of the prior art to use various types of polymers,
generally in perfuming hydroalcoholic solutions in order to improve the
retention of the fragrance therein.

[0006]Thus, in U.S. Pat. No. 6,703,011, a system for the controlled
release of fragrance by means of a permeable, continuous, non-porous,
single-phase and emulsifier-free polymer film is proposed. The polymer
film acts as a barrier for the fragrance which diffuses more slowly into
the surrounding environment. Among the polymers used, polymers of the
type LUVISKOL VA 55E, ULTRAHOLD 8, LUVIQUAT FC or HM, ADVANTAGE
PLUS, GAFQUAT 734N or 755N, DIAFORMERS, GAFQUAT HS-100, OMNIREZ 2000 are
cited.

[0007]In Application WO 2004/098556, it is proposed to use, in a
hydroalcoholic support, acrylic homopolymers or copolymers such as
carbomers, pemulen or homopolymers or copolymers of the
polyacryloyldimethyltaurate (AMPS) type such as HOSTACERIN AMP or
ethylene oxide polymers in order to concentrate the fragrance molecules
over a smaller surface area and extend the diffusion of said fragrance.

[0008]In Patent FR 2747306, it is proposed to use a non-ionic non-cyclic
hydrocarbon-based polymer comprising anhydroglucose and/or ethylene units
in a composition containing a fragrance for the fixing and/or prolonged
release of this fragrance.

[0009]In Patent EP 804 924, it is proposed to use a polysaccharide alkyl
ether comprising at least two different units and at least one hydroxyl
group substituted by a saturated C1-C24 alkyl chain, in
particular ethyl guar having a degree of ethyl substitution of at least
2, such as the commercial products AQUALON AQ-D3360-L and AQ-3360-H to
increase the retention of a fragrance.

[0010]In U.S. Pat. No. 6,172,037, it is proposed to increase the staying
power of a fragrance in a hydroalcoholic solution with a combination of a
polyvinylpyrrolidone and a hydroxypropyl cellulose.

[0011]In Application WO 2005/070371, it is also proposed to use the
combination of a carboxylated acrylates/-octacrylamide copolymer and of a
hydrolysed jojoba ester in an alcoholic or hydroalcoholic composition for
the purpose of reducing the fragrance concentration, of improving its
retention on the skin and its resistance to water or sweat.

[0012]Although these polymers, as mentioned previously in the documents of
the prior art, make it possible to increase the staying power of the
fragrance, they generally have the drawback of substantially increasing
the viscosity of hydroalcoholic lotions and/or of making them cloudy,
opalescent and/or of forming precipitates in the solutions that make them
not very attractive and unfit for consumption.

[0013]The need remains to find novel types of polymers that make it
possible to effectively increase the staying power of the fragrance over
a wide range of clear and fluid perfuming products such as eau de
toilettes and eau de parfums without the drawbacks mentioned above,
namely without adversely affecting the transparency, the stability, and
the viscosity of the perfuming composition and without disturbing the
well-being of the consumer such as the odour or the feel.

[0014]The Applicant has surprisingly discovered that this objective could
be achieved using a partially or completely neutralized
2-acrylamidomethylpropanesulphonic acid amphiphilic polymer (AMPS) that
is crosslinked or uncrosslinked with optionally a cellulose alkyl ether
and/or an alkylcellulose alkyl ether

[0015]This discovery is the basis of the invention.

[0016]The invention relates to a fragrancing composition comprising, in a
cosmetically acceptable medium:

a) at least 1% by weight relative to the total weight of the composition
of at least one fragrancing substance;b) at least one volatile alcohol
and/or one volatile silicone oil;c) at least one crosslinked or
uncrosslinked amphiphilic copolymer of partially or completely
neutralized 2-acrylamidomethylpropanesulphonic acid monomer (A) and at
least one hydrophobic monomer (B);d) optionally at least a cellulose
alkyl ether and/or an alkylcellulose alkyl ether, the alkyl radicals
being linear or branched saturated C1-C4 alkyl radicals; ande)
optionally water.

[0017]Another subject of the invention is a method of fragrancing human
keratinous substances and especially the skin, lips and integuments
(hair, eyebrows, eyelashes), comprising the application to the keratinous
substances of the composition as defined above.

[0018]Another subject of the invention is the use of (a)) a crosslinked or
uncrosslinked amphiphilic copolymer of partially or completely
neutralized 2-acrylamidomethylpropanesulphonic acid monomer (A) and at
least one hydrophobic monomer (B) and optionally b) a cellulose alkyl
ether and/or an alkylcellulose alkyl ether, the alkyl radicals being
linear or branched saturated C1-C4 alkyl radicals as defined
previously in a fragrancing composition as defined above, for the purpose
of increasing the staying power of the fragrance.

[0019]The expression "fragrancing substance" is understood to mean any
fragrance or aroma capable of releasing a pleasant odour.

[0020]Preferably, the amount of fragrancing substance(s) varies from 1 to
30% by weight, better still from 2 to 25% by weight relative to the total
weight of the composition.

[0021]The expression "cosmetically acceptable medium" is understood to
mean, in the composition of the invention, a medium that is non-toxic and
is capable of being applied to the skin (including inside the eyelids),
the lips, nails or hair, eyelashes and eyebrows of humans.

[0022]The term "volatile alcohol" is understood to mean any compound
comprising at least one alcohol functional group having a vapour pressure
at 20° C. greater than 17.5 mmHg.

[0023]The term "oil" is understood, within the sense of the invention, to
mean a fatty substance that is not soluble in water and that is liquid at
ambient temperature and at atmospheric pressure.

[0024]The expression "volatile silicone oil" is understood, within the
sense of the invention, to mean any silicone-based compound capable of
evaporating in contact with the skin or with keratinous fibres in less
than one hour, at ambient temperature and atmospheric pressure. The
volatile compound is a volatile cosmetic compound that is liquid at
ambient temperature and that especially has a non-zero vapour pressure at
ambient temperature and atmospheric pressure, especially that has a
vapour pressure ranging from 0.13 Pa to 40 000 Pa (10-3 to 300
mmHg), in particular ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mmHg)
and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg).

[0025]Fragrancing substances that may be used in the composition of the
invention include fragrances and aromas of natural or synthetic origin,
and mixtures thereof. As fragrances and aromas of natural origin, mention
may, for example, be made of extracts of flowers (lily, lavender, rose,
jasmine, ylang-ylang), of stems and of leaves (patchouli, geranium,
bitter leaf), of fruits (coriander, anise, cumin, juniper), of fruit peel
(bergamot, lemon, orange), of roots (angelica, celery, cardamom, iris,
sweet flag), of wood (pinewood, sandalwood, lignum vitae, pink cedar), of
herbs and grasses (tarragon, lemongrass, sage, thyme), of needles and
branches (spruce, fir, pine, dwarf pine), of resins and of balsams
(galbanum, gum elemi, gum benzoin, myrrh, frankincense, opopanax).

[0035]According to a preferred embodiment of the invention, use is made of
a mixture of various fragrancing substances which jointly generate a note
that is pleasant to the user. Among the known olfactory notes, mention
may, for example, be made of hesperide fragrances, aromatics, floral
fragrances, musks, fruity fragrances, spicy fragrances, oriental
fragrances, oceanic fragrances, aquatic notes, chypre fragrances, woody
fragrances, fougere fragrances, and mixtures thereof.

Amphiphilic AMPS Copolymers

[0036]The composition contains at least one crosslinked or uncrosslinked
amphiphilic copolymer of partially or completely neutralized
2-acrylamidomethylpropanesulphonic acid monomer (A) and of at least one
hydrophobic monomer (B), this copolymer being water-soluble or
water-dispersible.

[0037]Furthermore, the expression "water-soluble or water-dispersible
copolymer" is understood to mean a copolymer which, when introduced into
water at a concentration equal to 1% by weight, results in a
macroscopically homogeneous solution, the light transmittance of which,
at a wavelength equal to 500 nm, through a 1 cm thick sample, is at least
10%, which corresponds to an absorbance [abs=-log (transmittance)] of
less than 1.5.

[0038]The amphiphilic copolymers according to the invention generally have
a number-average molecular weight ranging from 50 000 to 10 000 000,
preferably from 100 000 to 8 000 000 and more preferably from 100 000 to
7 000 000.

[0039]The copolymers according to the invention are partially or
completely neutralized by a mineral base (sodium hydroxide, potassium
hydroxide, ammonium hydroxide) or an organic base such as
monoethanolamine, diethanolamine or triethanolamine, an aminomethyl
propanediol, N-methylglucamine, basic amino acids such as arginine and
lysine, and mixtures thereof.

[0040]The amphiphilic copolymer used in the composition of the invention
is capable of being obtained from: [0041]partially or completely
neutralized 2-acrylamidomethylpropanesulphonic acid monomer (A); and
[0042]one or more hydrophobic monomers (B) containing (i) an
ethylenically unsaturated end group, (ii) a hydrophilic part of formula
--(CH2CH2O)n--(CH2CH(CH3)O)p where n and p,
independently of one another, denote an integer ranging from 0 to 30,
preferably from 1 to 25 and more preferably from 3 to 20 on condition
that n+p is less than or equal to 30, preferably less than and better
still less than 20, which means that n+p may range from 0 to 30,
preferably from 0 to 25 and better still from 0 to 20, and (iii) a
hydrophobic part of CmH2m+1 type that is aliphatic or
cycloaliphatic, linear or branched, where m is an integer ranging from 6
to 22.

[0043]According to one particular embodiment of the invention, in the
formula indicated above, the sum of n+p is an integer greater than or
equal to 1 (n+p≧1).

[0044]The ethylenically unsaturated end group of the hydrophobic monomer B
may especially be chosen from hydrophilic monomers having an ethylenic
unsaturation, such as for example acrylic acid, methacrylic acid,
acrylamide, methacrylamide, and mixtures thereof.

[0045]The hydrophobic part CmH2m+1 comprises from 6 to 30 carbon
atoms, preferably from 6 to 22 carbon atoms, more preferably from 6 to 18
carbon atoms and more preferably still from 12 to 18 carbon atoms. This
hydrophobic part may be chosen, for example, from C6-C30,
preferably C6-C18, alkyl radicals that are linear (for example,
hexyl, octyl, decyl, dodecyl, hexadecyl, octadecyl, tetradecyl or oleyl),
branched (for example, isostearic) or cyclic (for example, cyclododecane
or adamantane). Among these hydrophobic radicals, linear and branched
alkyl radicals are more particularly preferred.

[0046]The hydrophobic monomers (B) of the polymer used according to the
invention are preferably chosen from acrylates of formula (I) below:

##STR00001##

in which n and p, independently of one another, denote a number of moles
that varies from 0 to 30, preferably from 1 to 25 and more preferably
from 3 to 20, on condition that the sum n+p≧1 and less than or
equal to 30, preferably less than 25 and better still less than 20;
R1 denotes a hydrogen atom or a linear or branched C1-C6
alkyl (preferably methyl) radical; and R denotes the CmH2m+1
radical as defined above.

[0047]As indicated above, the amphiphilic copolymers may be crosslinked or
uncrosslinked. According to one preferred embodiment of the invention,
they are preferably uncrosslinked.

[0049]The copolymers of the invention may additionally contain one or more
other ethylenically unsaturated hydrophilic monomers, for example chosen
from acrylic acid, methacrylic acid or their β-substituted alkyl
derivatives or their esters obtained with monoalkylene glycols or
polyalkylene glycols, acrylamide, methacrylamide, vinylpyrrolidone,
itaconic acid, maleic acid and mixtures thereof.

[0050]The copolymers of the invention may moreover, additionally contain
one or more ethylenically unsaturated hydrophobic comonomers, for example
comprising: [0051]a fluoro or C6-C18 alkylfluoro radical (for
example the group of formula
--(CH2)2--(CF2)9--CF3); [0052]a cholesteryl
radical or a radical derived from cholesterol (for example, cholesteryl
hexanoate); [0053]a polycyclic aromatic group such as naphthalene or
pyrene; and [0054]a silicone or alkylsilicone or else alkylfluorosilicone
radical.

[0055]According to one particular embodiment of the invention, the
amphiphilic copolymers of AMPS used are uncrosslinked polymers, composed
of

in which X.sup.+ is a proton, an alkali metal cation, an alkaline-earth
metal cation or the ammonium ion.

[0056]The particularly preferred polymers are obtained from AMPS units of
formula (II) and units of formula (I) where p=0; R1 is the methyl
(CH3) radical; n is an integer ranging from 7 to 25 and R2 is a
C10-C18 alkyl radical.

[0057]The polymers for which X.sup.+ in the formula (II) denotes sodium or
ammonium are more particularly preferred.

[0058]The amphiphilic polymers used according to the invention may be
obtained according to conventional radical polymerization processes in
the presence of one or more initiators such as, for example,
azobisisobutyronitrile (AIBN), azobisdimethylvaleronitrile,
2,2-azobis[2-amidinopropane] hydrochloride (ABAH), organic peroxides such
as dilauryl peroxide, benzyl peroxide, tert-butyl hydroperoxide, etc.,
mineral peroxide compounds such as potassium or ammonium persulphate, or
H2O2 optionally in the presence of reducing agents.

[0059]The polymers may especially be obtained by radical polymerization in
a tert-butanol medium in which they precipitate. By using polymerization
via precipitation into tert-butanol, it is possible to obtain a
distribution of the size of the polymer particles that is particularly
favourable for its uses.

[0060]The polymerization reaction may be carried out at a temperature
between 0 and 150° C., preferably between 10 and 100° C.,
either at atmospheric pressure, or under a reduced pressure. It may also
be carried out under an inert atmosphere, preferably under nitrogen.

[0076]According to one preferred embodiment of the invention, the
amphiphilic polymer used is preferably an uncrosslinked copolymer of a
monomer of formula (II) where X.sup.+ denotes sodium or ammonium and of a
C12-C14 or C12-C15 alcohol methacrylate comprising 7
or 23 oxyethylenated groups of formula (I), obtained from methacrylic
acid or from a salt of methacrylic acid and Genapol LA-070 or from a
C12-C15 alcohol oxyethylenated by 23 mol of ethylene oxide.

[0077]More preferably, the amphiphilic polymers used are copolymers of
monomer (II) with X.sup.+ denoting sodium or ammonium and of alcohol
methacrylate having the following characteristics:

[0078]More preferably still, use will be made of an amphiphilic copolymer
of monomer (II) where X.sup.+ denotes sodium or ammonium and 18.8 mol %
of alcohol methacrylate and of C12-C14 alcohol methacrylate
comprising 7 oxyethylenated groups of formula (I) (Genapol LA-70).

[0079]The AMPS polymers according to the invention are generally present
in amounts of active material ranging from 0.01 to 5% by weight, more
preferably still from 0.1 to 5% by weight and more preferably still from
0.3 to 2% by weight relative to the total weight of the composition.

Cellulose Compounds

[0080]Among the cellulose alkyl ethers that can be used according to the
invention, mention may be made of: [0081]cellulose methyl ether (INCI
name: Methylcellulose) such as the product sold under the trade name
BENECEL METHYLCELLULOSE by Hercules Incorporated or the product sold
under the trade name METHOCEL A by Amerchol Corporation; and
[0082]cellulose ethyl ether (INCI name: Ethylcellulose) such as the
product sold under the trade name AQUALON ETHYLCELLULOSE by Hercules
Incorporated or the product sold under the trade name ETHOCEL by Dow
Chemical.

[0083]Among the alkylcellulose alkyl ethers that can be used according to
the invention, mention may be made of ethylcellulose methyl ether (INCI
name: Methyl Ethyl Cellulose) such as the product sold under the trade
name CELACOL CTP 991 by Courtauld Chemicals.

[0084]Use will more particularly be made of cellulose ethyl ether (INCI
name: Ethylcellulose).

[0085]The cellulose compounds according to the invention are generally
present in amounts of active material ranging from 0.01 to 4% by weight,
more preferably still from 0.1 to 3% by weight and more preferably still
from 0.3 to 2% by weight relative to the total weight of the composition.

[0086]According to one particular embodiment of the invention, use will be
made of a mixture composed of at least a) one crosslinked or
uncrosslinked amphiphilic copolymer of partially or completely
neutralized 2-acrylamidomethylpropanesulphonic acid monomer (A) and at
least one hydrophobic monomer (B) with b) at least one cellulose alkyl
ether and/or an alkylcellulose alkyl ether so as to improve the clarity
of the composition and/or reduce or even eliminate the low-temperature
precipitation phenomena which may be caused by certain fragrances and/or
improve the stability of the composition during storage. The mixture is
used at concentrations ranging from 0.01 to 2.5% relative to the total
weight of the composition.

[0087]The fragrancing compositions are generally transparent. Their
transparency is measured by a turbidity ranging from 1 to 200 NTU and
preferably from 1 to 50 NTU; turbidity measured at 24 hours using a
HACH--model 2100 P portable turbidimeter.

[0088]The compositions according to the invention are generally lotions
and preferably have a viscosity ranging from 0.5 to 60 mPas and more
preferably from 1 to 60 mPas, more preferably still from 3 to 30 mPas;
the viscosity being measured using a Rheomat TVe-05, at 25° C.,
speed of rotation 200 rpm, spindle No. 1, 10 min. These low viscosities
make it possible to package the compositions of the invention using
mechanical pressurization or propellant gas devices so as to be applied
in the form of fine particles (vaporization).

[0089]The cosmetically acceptable medium in accordance with the present
invention contains at least one volatile alcohol and/or one volatile
silicone oil and optionally water. Preferably, the medium of the
composition contains water in an amount preferably ranging from 0.01% to
50% and more preferably from 0.5% to 25% by weight relative to the total
weight of the composition.

[0090]The volatile alcohols in accordance with the present invention are
preferably chosen from C1-C5 lower monoalcohols, and can be
chosen from methanol, ethanol, propanol, isopropanol, n-butanol,
isobutanol and t-butanol, and more particularly ethanol.

[0091]The volatile alcohol(s) is(are) preferably present in amounts
ranging from 40% to 80%, and more preferably in amounts ranging from 55%
to 80% by weight, relative to the total weight of the composition.

[0092]As volatile silicone oils, mention may, for example, be made of
linear or cyclic volatile silicone oils, in particular those having a
viscosity ≦6 centistokes (6×10-6 m2/s) and having
in particular from 2 to 10 silicon atoms, these silicones optionally
comprising alkyl or alkoxy groups containing from 1 to 22 carbon atoms.
As a volatile silicone oil that can be used in the invention, mention may
in particular be made of octamethylcyclotetrasiloxane,
decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane,
heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane,
hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane and
dodecamethylpentasiloxane and mixtures thereof.

[0093]The volatile silicone oil(s) is(are) preferably present at from 40%
to 98.5%, preferably in concentrations ranging from 10% to 80% by weight,
relative to the total weight of the composition.

[0094]The composition of the invention may also comprise any additive
normally used in the fragrance field, chosen in particular from cosmetic
or dermatological active agents, emollients or demulcents such as sweet
almond oil, apricot kernel oil, moisturizers such as glycerol, calmatives
such as α-bisabolol, allantoin, aloe vera; vitamins, essential
fatty acids, insect repellants, propellants, fillers, pearlescent agents,
flakes, dyestuffs that are soluble in the support of the composition,
colour stabilizers for the fragrance and mixtures thereof. When they are
present in the composition of the invention, these additives may be
present in an amount ranging from 0.001 to 10% and better still from 0.01
to 5% by weight relative to the total weight of the composition.

[0095]The composition of the invention may also comprise dyestuffs that
are soluble in the support of said composition.

[0096]As soluble dyes in accordance with the invention, mention may be
made of water-soluble or hydrophilic dyes, such as:

[0097]The soluble dye or dyes in accordance with the invention are
preferably present in amounts ranging from 10-5 to 1% of the total
weight of the composition, preferably from 10-4 to 0.1% of the total
weight of the composition.

[0098]As colour stabilizers for fragrances, mention will be made of
tris(tetramethylhydroxypiperidinol) citrate such as the product sold
under the name TINOGUARD Q by Ciba-Geigy, sodium benzotriazolyl
butylphenol sulphonate such as the product sold under the name TINOGUARD
HS by Ciba-Geigy; benzotriazolyl dodecyl p-cresol such as the product
sold under the name TINOGUARD TL by Ciba-Geigy, such as the product sold
under the trade name CIBAFAST H LIQUID by Ciba-Geigy or bumetrizole such
as the product sold under the name TINOGUARD AS by Ciba-Geigy.

[0099]According to one particular form of the invention, use will also be
made of at least one antioxidant and/or at least one peptizer so as to
improve the clarity of the composition and/or reduce or even eliminate
the low-temperature precipitation phenomena which may be caused by
certain fragrances and/or improve the stability of the composition during
storage.

[0100]Among the antioxidants, mention may be made, for example, of BHA
(tert-butyl-4-hydroxyanisole), BHT (2,6-di-tert-butyl-p-cresol),
tocopherols such as vitamin E and its derivatives such as tocopheryl
acetate. They are used at concentrations ranging from 0.01% to 1%
relative to the total weight of the composition.

[0101]Among the peptizers that can be used according to the invention, use
will more particularly be made of hydrogenated castor oil that is
oxyethylenated with 60 mol of ethylene oxide: INCI name: PEG-60
HYDROGENATED CASTOR OIL such as the product sold under the trade name
CREMAPHOR RH60 by BASF. They are used at concentrations ranging from 0.1%
to twice the concentration of fragrance concentrate relative to the total
weight of the composition.

[0102]According to one particular form of the invention, use will also be
made of at least one cellulose alkyl ether and/or an alkylcellulose alkyl
ether so as to improve the clarity of the composition and/or reduce or
even eliminate the low-temperature precipitation phenomena which may be
caused by certain fragrances and/or improve the stability of the
composition during storage. They are used at concentrations ranging from
0.01 to 2.5% relative to the total weight of the composition.

[0103]Among the cellulose alkyl ethers that can be used according to the
invention, mention may be made of: [0104]cellulose methyl ether (INCI
name: Methylcellulose) such as the product sold under the trade name
BENECEL METHYLCELLULOSE by Hercules Incorporated or the product sold
under the trade name METHOCEL A by Amerchol Corporation; and
[0105]cellulose ethyl ether (INCI name: Ethylcellulose) such as the
product sold under the trade name AQUALON ETHYLCELLULOSE by Hercules
Incorporated or the product sold under the trade name ETHOCEL by Dow
Chemical.

[0106]Among the alkylcellulose alkyl ethers that can be used according to
the invention, mention may be made of ethylcellulose methyl ether (INCI
name: Methyl Ethyl Cellulose) such as the product sold under the trade
name CELACOL CTP 991 by Courtauld Chemicals.

[0107]Use will more particularly be made of cellulose ethyl ether (INCI
name: Ethylcellulose).

[0108]Of course, a person skilled in the art will be sure to choose the
optional additional additives and/or their amount in such a way that the
advantageous properties of the composition according to the invention are
not, or not substantially, impaired by the envisaged addition.

[0109]The invention applies not only to the coloured fragrancing products
but also to care products, and products for treating the skin, including
the scalp, and the lips, that contain an odorous substance. The
composition according to the invention may thus constitute a fragrancing,
care or treatment composition for keratinous substances, and especially
may be in the form of eau fra che (splash), eau de toilette, eau de
parfum, aftershave lotion, skincare water, silicone or hydrosilicone care
oil. It may also be in the form of a fragranced two-phase lotion (eau de
toilette phase/hydrocarbon-based oil and/or silicone oil phase).

[0110]Another subject of the invention is a cosmetic method of fragrancing
human keratinous substances and especially the skin, lips and
integuments, comprising the application to the keratinous substances of
the composition as defined above.

[0111]The composition according to the invention may be manufactured by
known processes, generally used in the field of fragranced and coloured
lotions.

[0112]The compositions according to the invention in the form of lotions
may be packaged in the form of bottles. They may also be applied in the
form of fine particles by means of mechanical pressurization or
propellant gas devices. The devices according to the invention are well
known to a person skilled in the art and comprise pump bottles or sprays,
aerosol containers comprising a propellant and also aerosol pumps that
use compressed air as a propellant. The latter are described in U.S. Pat.
No. 4,077,441 and U.S. Pat. No. 4,850,517 (that are an integral part of
the contents of the description).

[0114]The invention will now be described with reference to the following
examples given by way of illustration and non-limitingly. In these
examples, unless indicated otherwise, the amounts are expressed as weight
percentages. The following fragrancing formulations were produced; the
amounts are indicated in weight percentages:

[0116]An eau de toilette was obtained that had a good retention (see
olfactory tests below), was clear, stable during storage at ambient
temperature, 37° C. and 45° C. However, a slight
low-temperature flocculation phenomenon was observed at 4° C. but
it was reversible from 12° C. A turbidity of 1 was obtained,
measured at 24 hours using a portable Hach-model 2100 P turbidimeter. The
viscosity measured using the Rheomat TVe-05, at 25° C., with a
speed of rotation of 200 rpm, spindle No. 1, for 10 min was about 7 mPas
DU.

[0118]An eau de toilette was obtained that had a good retention (see
olfactory tests below), was clear, stable during storage at low
temperature (4° C.) and at ambient temperature, 37° C. and
45° C. No low-temperature flocculation phenomenon was observed at
4° C. A turbidity of 7 was obtained, measured at 24 hours using a
portable Hach-model 2100 P turbidimeter. The viscosity measured using the
Rheomat TVe-05, at 25° C., with a speed of rotation of 200 rpm,
spindle No. 1, for 10 min was about 8 mPas.

Sensory Tests Carried Out on the Eau De Toilettes Examples No. 1 and 2

[0120]The sensory tests were carried out using a panel of 7 to 9 experts
trained to smell and evaluate the eau de toilettes. The olfactory
evaluations were carried out on smelling strips at T=0, 1 hour, 4 hours,
6 hours and 24 hours.

[0121]For each composition 1 or 2, a triangular test was carried out with
olfaction of 3 samples: 1 control and 2 test samples with composition 1
or 2 according to the invention.

[0122]The test was repeated 3 times at each time of analysis, the expert
judge therefore dipped 9 smelling strips.

[0123]The percentage of people that recognize composition 1 or 2 of the
invention as being more intense compared to the control sample was
evaluated.

[0125]An eau de toilette was obtained that had a good retention, was
clear, stable during storage at ambient temperature, 37° C. and
45° C. Compared to Example 1, a substantial reduction in the
low-temperature flocculation phenomenon at 4° C. was observed. A
turbidity of 1 and a viscosity of about 7 mPas were obtained.